Home / 27,211.40-40,817.10-9,681.80

Finding the Fourth Proportional to 27,211.40, 40,817.10 and 9,681.80

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Solution

The fourth proportional to 27,211.40, 40,817.10 and 9,681.80 is: 14,522.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,211.40 : 40,817.10 = 9,681.80 : x
  2. Step 2: Convert to fraction form
    27,211.40/40,817.10 = 9,681.80/x
  3. Step 3: Cross multiply
    27,211.40x = 40,817.10 × 9,681.80
  4. Step 4: Simplify right side
    27,211.40x = 395,182,998.78
  5. Step 5: Solve for x
    x = 395,182,998.78/27,211.40
  6. Step 6: Final answer
    x = 14,522.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.